Cyber Resilience

CVE-2026-58298

High

Published: 03 July 2026

Published
03 July 2026
Modified
03 July 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS Score N/A
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-58298 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.2 (High).

Operationally, it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

CWE(s)
CWE-79

Related Threats

CVEs Like This One

CVE-2021-38903Shared CWE-79
CVE-2021-39183Shared CWE-79
CVE-2021-38350Shared CWE-79
CVE-2022-0372Shared CWE-79
CVE-2022-1396Shared CWE-79
CVE-2021-24841Shared CWE-79
CVE-2021-31813Shared CWE-79
CVE-2021-40888Shared CWE-79
CVE-2022-1571Shared CWE-79
CVE-2021-32668Shared CWE-79

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References